From the part of the brain known as the alarm system to the decades-long development of the frontal lobe, today's show looks into the science of why we feel fear. We take you Around the World in 80 Seconds to report on the North Korean leader's recent trip to China and the banning of carriage rides in New York City's Central Park. And we show you the grueling work of farming salt in part of Southern Asia. The cliff diver who leaped off an iceberg and an annual pet masquerade round out today's show!